Usually when I on the evening go to bed I take some interesting book with me. I read it for a while to get me down to sleep. Probably most people seek information from the Nett by googleing but I am so oldfashioned I prefer a real book 
But what a book. The one I found and ordered is BSD Unix� Toolbox: 1000+ Commands for FreeBSD�, OpenBSD, and NetBSD� :}